Good Samaritan law

A Good Samaritan law — in the drug context — is a statute that protects someone who calls emergency services during a drug overdose from certain criminal charges the call would otherwise expose. Protection commonly extends to the person experiencing the overdose as well as the caller, though the precise scope of each depends on the wording of the particular statute.

In harm reduction literature, the phrase refers specifically to overdose-response immunity, and that is the sense used throughout these pages — distinct from the broader legal tradition of shielding bystanders who render first aid to strangers.

What it means in practice

The deterrent Good Samaritan laws address is direct: someone present at an overdose may fear arrest for possession or other drug offenses if they call emergency services. A Good Samaritan statute creates an exception for some of those charges — most often simple possession of the substances found at the scene — to lower that barrier.

Protection rarely extends to supply or distribution offenses, outstanding warrants, or conditions of probation or parole. Most statutes apply only to conduct directly connected to the emergency call itself.

The form of immunity also varies. Some laws bar arrest; others bar prosecution; a few create an affirmative defence that must be raised in court. Arrest immunity prevents the call from triggering custody at all; a prosecution bar still allows detention, with the charge dismissed afterwards. The distinction matters to someone deciding whether to call.

How jurisdictions vary

Within the United States, most states have enacted some version of a Good Samaritan law, but the protections differ substantially: which substances are covered, who qualifies as a protected caller, whether the person in crisis is also shielded, and how outstanding warrants are treated all vary by state. There is no federal equivalent for drug offenses.

Canada's federal Good Samaritan Drug Overdose Act (2017) protects both the caller and the person in crisis from simple possession charges when emergency services are contacted — one of the broader federal frameworks of its kind.

The United Kingdom has no direct equivalent under the Misuse of Drugs Act; prosecution discretion and police guidance operate in its place without a formal statutory shield.

In jurisdictions that have decriminalised personal drug use, such as Portugal, the practical need for a separate statute is reduced — simple possession does not carry criminal liability to begin with, so the deterrent the law is designed to remove is already absent.

What is contested

Research on whether these laws meaningfully change caller behaviour is not settled. Awareness of Good Samaritan protections is consistently found to be low, even in jurisdictions with established laws, and other deterrents — outstanding warrants, probation status, distrust of law enforcement — persist independently of the statute.

Some studies associate the passage of these laws with increases in emergency calls during overdoses; others find minimal measurable effect at the population level. The relationship between statutory protection and actual caller decisions remains an active area of public health research.

Scope and currency

This entry is not legal advice and does not describe the law in any particular jurisdiction or as it applies to any reader's situation. The position here is stated as of August 2026; Good Samaritan statutes are introduced, amended, and interpreted by courts on an ongoing basis.

Per-substance legal status sections carry jurisdiction-specific information with dated sources; those are the values to rely on for a specific substance in a specific place.